Translations problem

Hello,

We are starting the process of translating the whole EasySocial & Easy Discuss files in Greek.
However, some strings do not seem to work. For instance:

; APP_USER_PROFILES_STREAM_UPDATED_PROFILE_MALE="Ο %1s ανανέωσε το προφίλ του"

We purge the cache, and reload the page, and we get:

nikos updated his profile — πριν 3 λεπτά

We were able to change other strings.
What are we missing ?

We cannot find another entry with "updated his profile" on the Greek language file.

Thanks
S.